US 12,113,684 B2
Identifying bogon address spaces
Shashidhar Gandham, Fremont, CA (US); Rohit Chandra Prasad, Sunnyvale, CA (US); Abhishek Ranjan Singh, Pleasanton, CA (US); Navindra Yadav, Cupertino, CA (US); Khawar Deen, Sunnyvale, CA (US); and Varun Sagar Malhotra, Sunnyvale, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Jan. 18, 2022, as Appl. No. 17/578,375.
Application 17/578,375 is a continuation of application No. 16/725,945, filed on Dec. 23, 2019, granted, now 11,368,378.
Application 16/725,945 is a continuation of application No. 15/171,836, filed on Jun. 2, 2016, granted, now 10,516,586, issued on Dec. 24, 2019.
Claims priority of provisional application 62/171,899, filed on Jun. 5, 2015.
Prior Publication US 2022/0141103 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 43/045 (2022.01); G06F 3/0482 (2013.01); G06F 3/04842 (2022.01); G06F 3/04847 (2022.01); G06F 9/455 (2018.01); G06F 16/11 (2019.01); G06F 16/13 (2019.01); G06F 16/16 (2019.01); G06F 16/17 (2019.01); G06F 16/174 (2019.01); G06F 16/23 (2019.01); G06F 16/2457 (2019.01); G06F 16/248 (2019.01); G06F 16/28 (2019.01); G06F 16/29 (2019.01); G06F 16/9535 (2019.01); G06F 21/53 (2013.01); G06F 21/55 (2013.01); G06F 21/56 (2013.01); G06N 20/00 (2019.01); G06N 99/00 (2019.01); G06T 11/20 (2006.01); H04J 3/06 (2006.01); H04J 3/14 (2006.01); H04L 1/24 (2006.01); H04L 7/10 (2006.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01); H04L 9/40 (2022.01); H04L 41/046 (2022.01); H04L 41/0668 (2022.01); H04L 41/0803 (2022.01); H04L 41/0806 (2022.01); H04L 41/0816 (2022.01); H04L 41/0893 (2022.01); H04L 41/12 (2022.01); H04L 41/16 (2022.01); H04L 41/22 (2022.01); H04L 43/02 (2022.01); H04L 43/026 (2022.01); H04L 43/04 (2022.01); H04L 43/062 (2022.01); H04L 43/08 (2022.01); H04L 43/0805 (2022.01); H04L 43/0811 (2022.01); H04L 43/0829 (2022.01); H04L 43/0852 (2022.01); H04L 43/0864 (2022.01); H04L 43/0876 (2022.01); H04L 43/0882 (2022.01); H04L 43/0888 (2022.01); H04L 43/10 (2022.01); H04L 43/106 (2022.01); H04L 43/12 (2022.01); H04L 43/16 (2022.01); H04L 45/00 (2022.01); H04L 45/302 (2022.01); H04L 45/50 (2022.01); H04L 45/74 (2022.01); H04L 47/11 (2022.01); H04L 47/20 (2022.01); H04L 47/2441 (2022.01); H04L 47/2483 (2022.01); H04L 47/28 (2022.01); H04L 47/31 (2022.01); H04L 47/32 (2022.01); H04L 61/5007 (2022.01); H04L 67/01 (2022.01); H04L 67/10 (2022.01); H04L 67/1001 (2022.01); H04L 67/12 (2022.01); H04L 67/51 (2022.01); H04L 67/75 (2022.01); H04L 69/16 (2022.01); H04L 69/22 (2022.01); H04W 72/54 (2023.01); H04W 84/18 (2009.01); H04L 67/50 (2022.01)
CPC H04L 43/045 (2013.01) [G06F 3/0482 (2013.01); G06F 3/04842 (2013.01); G06F 3/04847 (2013.01); G06F 9/45558 (2013.01); G06F 16/122 (2019.01); G06F 16/137 (2019.01); G06F 16/162 (2019.01); G06F 16/17 (2019.01); G06F 16/173 (2019.01); G06F 16/174 (2019.01); G06F 16/1744 (2019.01); G06F 16/1748 (2019.01); G06F 16/2322 (2019.01); G06F 16/235 (2019.01); G06F 16/2365 (2019.01); G06F 16/24578 (2019.01); G06F 16/248 (2019.01); G06F 16/285 (2019.01); G06F 16/288 (2019.01); G06F 16/29 (2019.01); G06F 16/9535 (2019.01); G06F 21/53 (2013.01); G06F 21/552 (2013.01); G06F 21/556 (2013.01); G06F 21/566 (2013.01); G06N 20/00 (2019.01); G06N 99/00 (2013.01); G06T 11/206 (2013.01); H04J 3/0661 (2013.01); H04J 3/14 (2013.01); H04L 1/242 (2013.01); H04L 7/10 (2013.01); H04L 9/0866 (2013.01); H04L 9/3239 (2013.01); H04L 9/3242 (2013.01); H04L 41/046 (2013.01); H04L 41/0668 (2013.01); H04L 41/0803 (2013.01); H04L 41/0806 (2013.01); H04L 41/0816 (2013.01); H04L 41/0893 (2013.01); H04L 41/12 (2013.01); H04L 41/16 (2013.01); H04L 41/22 (2013.01); H04L 43/02 (2013.01); H04L 43/026 (2013.01); H04L 43/04 (2013.01); H04L 43/062 (2013.01); H04L 43/08 (2013.01); H04L 43/0805 (2013.01); H04L 43/0811 (2013.01); H04L 43/0829 (2013.01); H04L 43/0841 (2013.01); H04L 43/0858 (2013.01); H04L 43/0864 (2013.01); H04L 43/0876 (2013.01); H04L 43/0882 (2013.01); H04L 43/0888 (2013.01); H04L 43/10 (2013.01); H04L 43/106 (2013.01); H04L 43/12 (2013.01); H04L 43/16 (2013.01); H04L 45/306 (2013.01); H04L 45/38 (2013.01); H04L 45/46 (2013.01); H04L 45/507 (2013.01); H04L 45/66 (2013.01); H04L 45/74 (2013.01); H04L 47/11 (2013.01); H04L 47/20 (2013.01); H04L 47/2441 (2013.01); H04L 47/2483 (2013.01); H04L 47/28 (2013.01); H04L 47/31 (2013.01); H04L 47/32 (2013.01); H04L 61/5007 (2022.05); H04L 63/0227 (2013.01); H04L 63/0263 (2013.01); H04L 63/06 (2013.01); H04L 63/0876 (2013.01); H04L 63/1408 (2013.01); H04L 63/1416 (2013.01); H04L 63/1425 (2013.01); H04L 63/1433 (2013.01); H04L 63/1441 (2013.01); H04L 63/145 (2013.01); H04L 63/1458 (2013.01); H04L 63/1466 (2013.01); H04L 63/16 (2013.01); H04L 63/20 (2013.01); H04L 67/01 (2022.05); H04L 67/10 (2013.01); H04L 67/1001 (2022.05); H04L 67/12 (2013.01); H04L 67/51 (2022.05); H04L 67/75 (2022.05); H04L 69/16 (2013.01); H04L 69/22 (2013.01); H04W 72/54 (2023.01); H04W 84/18 (2013.01); G06F 2009/4557 (2013.01); G06F 2009/45587 (2013.01); G06F 2009/45591 (2013.01); G06F 2009/45595 (2013.01); G06F 2221/033 (2013.01); G06F 2221/2101 (2013.01); G06F 2221/2105 (2013.01); G06F 2221/2111 (2013.01); G06F 2221/2115 (2013.01); G06F 2221/2145 (2013.01); H04L 67/535 (2022.05)] 20 Claims
OG exemplary drawing
 
10. A system comprising:
one or more processors; and
a computer-readable medium comprising instructions stored therein, which when executed by the one or more processors, cause the one or more processors to:
identify a network address associated with a network flow;
obtain an indication of one or more reserved network address spaces, the indication being based on messages transmitted by a plurality of routers associated with the network flow, the messages including identifications of the one or more reserved network address spaces;
determine whether the network address is associated with the one or more reserved network address spaces in a network, the determining based on the messages including the identifications of the one or more reserved network address spaces; and
determine the network address is a bogon address when the network address is not associated with the one or more reserved network address spaces.